Central Contra Costa Sanitary District
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Image of an Overflow Protection Device. 

Sewer Overflow Prevention and FAQs

Keeping wastewater in the sewers is the job of CCCSD’s Collection System through cleaning, maintenance and repair of 1,500 miles of underground sewer lines. You can help by making sure that your side sewer – the connection from your home to the public sewer – remains free of any blockages.


Overflow Protection Device
Protect your property from sewage back-ups.

Fats, Oils and Grease (FOG)
FOG is the second leading cause of sewer spills.

Residents FAQs
Here's a list of the most frequently asked questions from residents.